8results about How to "Good function and effect" patented technology

The application discloses an improver for treating cadmium contaminated soil and a preparation method thereof, and belongs to the technical field of heavy metal contaminated soil treatment. The improver comprises the following raw materials: iron oxide, tri-potassium phosphate, biochar, corn sugar residue, xanthan gum, sodium citrate, vitamin E, arbutin, bilirubin and sodium bicarbonate. The improver is applied to cadmium contaminated soil, cadmium ions in the soil can be adsorbed and precipitated to form cadmium precipitates, the toxicity of the cadmium ions is reduced, earthworms ingest the cadmium precipitates into the body and fix them, so that the cadmium content in the soil is reduced. The improver can also promote the absorption, ingestion and digestion of cadmium ions by earthworms, maintain the normal physiological activities of the earthworms, reduce the toxic effect of cadmium on the earthworms, and make the earthworms better treat cadmium contaminated soil. The preparation method of the improver is simple, good in effect and friendly to the environment.

The utility model discloses a winding device for OCA (optical clear adhesive) production, which structurally comprises a dust removal box, an alignment frame, a base plate and a fixing plate, an electric push rod is used for pushing a lifting plate to enable an air ejector pipe at the lower end to be close to the OCA, so that the surface of the OCA is cleaned in the pulling process, and the OCA is completely removed. Dust on the surface of the OCA optical cement is blown under the action of a suction fan and a fan and is sucked into a filter bag through a suction pipe to be collected, the influence of the dust on the OCA optical cement is avoided, limiting columns can move on the two sides under the action of a twisting nut, the two sides of the OCA optical cement are limited by the limiting columns, and the OCA optical cement is prevented from being damaged. The situation that the OCA optical cement deviates towards the two sides in the winding process is avoided, so that wrinkles in the winding process are reduced, the product quality is better, the winding roller rotates under the action of the second motor so as to wind the OCA optical cement, manual winding is avoided, and the winding efficiency is improved.

The invention discloses a control method of washing equipment and the washing equipment, washing powder particles comprise different functional layers which are arranged in a layer-by-layer wrapping mode, the washing equipment comprises a dissolving program used for dissolving washing powder, and in the putting process or after putting of the washing powder, the dissolving program is controlled to be executed at intervals, and the different functional layers of the washing powder are dissolved step by step. According to the washing equipment, after the dissolving program of the washing equipment is started, the washing powder can be rapidly and efficiently dissolved, the dissolving program is controlled to be executed at intervals, so that different functional layers of the washing powder are sequentially dissolved step by step from the outer layer to the inner layer, and therefore components of the different functional layers can be dispersed into washing water step by step; the components respectively act on clothes in different time periods, the components cannot be interfered by the undissolved functional layer in the acting process, and the acting effect is good; the washing equipment disclosed by the invention is controlled by the control method disclosed by the invention, the effects of each component of the washing powder are fully exerted, and the treatment effect on clothes is good.

This invention discloses a method for improving the stability of perovskite thin films using water vapor and a method for fabricating perovskite solar cells, relating to the field of perovskite solar cell technology. The method includes: coating a perovskite precursor solution onto the surface of a first carrier transport layer, followed by annealing to obtain a perovskite thin film, wherein the perovskite thin film is composed of FA. 1‑x MA x Pb(I 1‑y Br y Cl z 3, 0≤x<0.12, 0≤y<0.2, 0≤z<0.1; The perovskite thin film is hydrated for 1-20 hours under conditions of relative humidity of 5%-35% and temperature of 35℃-65℃, so that the perovskite material in the perovskite film interacts with water molecules to form a hydrated passivation layer on the surface of the perovskite film. This hydrated passivation layer structure covers the surface of the perovskite film, further passivating surface defects, preventing water vapor from penetrating the perovskite lattice, and improving the performance and environmental stability of perovskite devices.

The application discloses an interface pretreatment liquid for prelithiation of a positive electrode, a lithium supplementing battery and a preparation method thereof, and relates to the technical field of lithium ion batteries.The interface pretreatment liquid comprises one or more of lithium polysulfide, hydrobromic acid and hydriodic acid as solutes, and comprises 0.1-10% of the solutes and 90-99.9% of solvents in percentage by mass.The solvents are one or more of N-methylpyrrolidone, ethylene carbonate, fluoroethylene carbonate, propylene carbonate, butylene carbonate, dimethyl carbonate, diethyl carbonate, methyl ethyl carbonate, gamma-butyrolactone, methyl formate, ethyl formate, methyl acetate, ethyl acetate, ethyl propionate, propyl propionate, ethyl butyrate, propyl butyrate, dimethyl sulfoxide and dimethyl sulfide.The interface pretreatment liquid has the advantages of simple preparation method, simple use method, short soaking time of lithium supplementing positive electrode sheets in the interface pretreatment liquid, good effect, high production efficiency and suitability for industrial production.

A zero-plugging-force socket connector comprises a signal pin module, a socket shell and an insulator shield, the signal pin module is installed in the socket shell, the signal pin module is provided with two pin rows which are oppositely arranged, and the same pin row is provided with a plurality of signal pins which are arranged at intervals; the insulator shield is arranged at the plug-in end of the socket shell; a cam shaft located between the two needle rows is arranged in the socket shell. In the signal pin module, the same pin row is provided with an insulating connecting rib capable of connecting all signal pins; the insulator shield is provided with a shield unit corresponding to the signal pin module, and the side surface of the shield unit is provided with an open shield side opening for the popping of the contacts of all signal pins in the same pin row. According to the utility model, the contact effect and the signal transmission quality after the connector is connected can be ensured.

The application discloses a temperature regulating device for low-temperature starting of a fuel cell, which is applied to the field of fuel cells.The temperature regulating device can monitor the water temperature of water entering and leaving the fuel cell and water discharged from a circulating water path in real time through the arrangement of two temperature sensors, and then the water flow can be adjusted according to the water temperature.In the case of low temperature, when the water flow rate is accelerated, the self-diameter ring is powered on, and then the end part of the water guide pipe at the water inlet of the fuel cell is self-expanded in diameter, and then a buffer deceleration layer is formed before the water enters the fuel cell.Compared with the prior art, under the condition of the same water flow rate, the fuel cell can be subjected to smaller impact force, so that the stability of the fuel cell can be greatly improved, the water inlet amount per unit time can be further improved than the prior art when starting at low temperature, the temperature regulating speed of the fuel cell is faster, the effect is better, and the influence of low temperature on the service life of the fuel cell is effectively reduced.

The application provides osmanthus fragrans plant extract mosquito repellent spray with long-acting mosquito repellent and itching, swelling relieving effects and a preparation method thereof, and relates to the technical field of mosquito repellent products. The raw materials of the mosquito repellent spray are as follows: osmanthus fragrans flower extract 7-9 parts, melaleuca alternifolia leaf extract 8-11 parts, chrysanthemum artemisia extract 1-2 parts, radix morindae officinalis extract 12-16 parts, platycodon grandiflorum root powder 16-19 parts, plant essential oil 20-24 parts, glycerol 18-23 parts, sucrose stearate 6-9 parts, p-hydroxyacetophenone 0.2-0.5 parts, stabilizer 3-5 parts and peppermint water 110-120 parts. The mosquito repellent spray can interfere with the activities of mosquitoes to achieve a good mosquito repellent effect, and can form a uniform and stable protective film on the skin surface to prolong the mosquito repellent effect, and can also play a good soothing and skin converging role, reduce local inflammatory reactions, promote skin barrier repair, and effectively relieve itching, swelling and other discomforts caused by mosquito bites.